30723036 has 24 divisors (see below), whose sum is σ = 71878800. Its totient is φ = 10213632.

The previous prime is 30723001. The next prime is 30723047. The reversal of 30723036 is 63032703.

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 30722997 and 30723015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1540 + ... + 7988.

It is an arithmetic number, because the mean of its divisors is an integer number (2994950).

Almost surely, 2^30723036 is an apocalyptic number.

It is an amenable number.

30723036 is an abundant number, since it is smaller than the sum of its proper divisors (41155764).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30723036 is a wasteful number, since it uses less digits than its factorization.

30723036 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6853 (or 6851 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 24.

The square root of 30723036 is about 5542.8364579879. The cubic root of 30723036 is about 313.1997282611.

Adding to 30723036 its reverse (63032703), we get a palindrome (93755739).

The spelling of 30723036 in words is "thirty million, seven hundred twenty-three thousand, thirty-six".